Apparently DP2 introduces some changes to Disk Images. 1. I created a disk image under 10.9.2 (some files I had backed up) - Under 10.8.4 I was unable to mount it. Some I/O error. I thought the image might be damaged but disk warrior was unable to recover it and a Carbon Copy process failed, telling me that the image was damaged too badly. - Under 10.9.1 I tried both options once again. Failed. - Under 10.9.2 I was finally able to mount the image again. No problem at all! Anybody else noticed this?